Could Cross-Buy Save the PS Vita?

"For the first time in months, I finally turned on my sexy piece of plastic the other day and played a game after the expected painstakingly long update. Playing the game felt good, very good. The game was Sly Cooper: Thieves in Time. Its a great game, but I didnt buy it on the PS Vita. See, I bought it for the PS3 and received a copy for the PS Vita for free via a Cross-Buy promotion. Seeing that I was able to get the same game twice for the price of one (technically less, but you get the idea)...